[Bug 102199] Kabylake has poor performance, doesn't upclock during activity quickly with single display configurations

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=102199

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
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 Attachment #134017|0                           |1
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--- Comment #27 from Chris Wilson <chris at chris-wilson.co.uk> ---
Created attachment 134314
  --> https://bugs.freedesktop.org/attachment.cgi?id=134314&action=edit
v4.9.50 backport

The gpu should reclock quickly that it should be tricky to catch the idle ->
max transition for the missed vblank as it should idle again shortly afterwards
(within 100ms). You can cat /sys/class/drm/card0/gt_act_freq_mhz, my
recommended tool would be intel-gpu-overlay with the i915/pmu patches...

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